<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>prompt</title>
  <script type="text/javascript" src="01.js"></script>
  <script type="text/javascript" src="02.js"></script>
  <script type="text/javascript" src="03.js"></script>
</head>
<body>
    <input name="button1" type="button" onClick="rec()" value="01.js, 点击我，对成绩做评价!" />
    <br><br>
    <input name="button2" type="button" onClick="Wopen()" value="02.js, 点击我，打开新窗口!" / >
    <br><br>
    <input name="button3" type="button" onClick="change()" value="03.js, 点击我，改变内容!" / >&nbsp;<b id="demo">你好</b>
    <br><br>
    <input name="button4" type="button" onClick="window.alert(Date());" value="弹出日期" / >
</body>
</html>